Democratic Progressive Party (DPP) presidential candidate Tsai Ing-wen (蔡英文) yesterday urged China’s Association for Relations Across the Taiwan Straits (ARATS) Chairman Chen Deming (陳德銘) to be “discreet in his behavior and words” during his visit to Taiwan ahead of next month’s elections after Chen said on Thursday that sometimes a politician with a high support rating causes disaster, citing Adolf Hitler as an example.